Untitled record

Application filed September 2,1885. Serial No. 115,963. (No model.)

To all whom it may concern:

Be it known that I, John W. Carter, of Brooklyn, in the county of Kings and State of New York, have invented certain new and ς useful Improvements in Cells for Electric Bat. teries, of which the following is a specification.

This invention relates to a cell for electric batteries of large size, the object being to dispense with the fragile and expensive glass io ceils and substitute a stronger and more durable ^cel1· „ „ „ , . ·

The invention consists of a cell for electric batteries, which comprises a metal body and an interior lining of rubber vulcanized there15 to, said lining being extended over the edge of the vessel, so as to form a protecting-rim therefor. . '

In the accompanying drawings, Figure 1 represents a vertical longitudinal section on line A x, Fig. 2, of my improved cell for electric batteries. Fig. 2 is a plan of the same.

Similar letters of reference indicate corresponding parts.

In the drawings, A represents the metallic 25 body of my improved cell, which body is made of stout sheet or cast metal, and B represents the lining therefor, which is composed of hard rubber vulcanized to said body.

In constructing the cell the inner surface of 30 the body A is first coated with copper, in order to facilitate the adhesion of the rubber lining. The so-coated body is then covered with a plastic rubber compound, and then subjected to the ordinary vulcanizing process.

The lining B is extended over the edge of the body A', so as to form a rib, &, that protects the edge of the metallic body against corrosion by the acid. ,. , . ,

Such cells can be constructed in any desired size, and are especially desirable for batteries 40 of large size, as they are not so-liable to breakage while in use or in course of shipment as the glass cells heretofore in use. _u ·ι

This cell is preferably provided with a bail, c, for convenience of handling. 45

The same construction may also be used for different vessels for various purposes. ...

.1 am aware that vessels lined with indiarubber nr other acid-resisting materialare well known, and I do not claim the same. In these 50 vessels there was mo necessity of covering the edges of the vessels, which, however, is essential in my cell, as thereby the corrosion of the metallic body of the cell is prevented.